Jar closure



sept. 18,1923. www@ W. MUELLER JAR cLosURE Filed Auer. 22. 1921 l a 9 william Mamme? INVENTOR naar Patented Sept. 18, 1923.

.un eLo'sUnn.

Application filed August 22, 1.921., Serial No. 494,158. m,

' To all lwhom t may concern:

Be it known that I, WILLIAM MUELLER, .a

citizen of the United States, residing atA Fredericksburg, in the county of Gillespie and State of Texas,-.have invented anew and useful J ar Closure,`of whichl the followin -is a specification.

hisinvention relates to jar closures.

The object is to provide a jar and closure therefor composed entirely of glass to accord with' sanitary requirements and fdispense withthe use of the rubber ring or gasket, the neck or mouth of-.the jar andthe ation of the following detailed description taken in connectionwith the accompanying drawing forming a. part of this specification, it being understood that while the' drawing shows a practical form of the invention, the latter is not confined to strict conformity therewith, but'may be changed or modified, Asolong as such changes and "modiications mark no materialV departure from the salient features of the invention, as specifically pointed out in the appended claims.

VFigure 1 is an inverted plan view ofthe closure for the j ar.

FigureQ is a planview ofthe jar. Figure 3 is a vertical section through the upper portion of the-jar and showing the closure applied thereto and held by the temporary clamping ring, prior to the applicationofthesealing wax. Figure 4f is a similar view taken at right anglesy to Figure 3.` j

' Figure 5 is an enlarged sectional view through one side of the mouth of the jar and the closure and'showing the 'manner of applying the'sealing wax.

Refi-,aimemmeula-fly o Figures e, 4 ma Y 5, of the drawing, there is illustratedthe upper portion of an ordinary glass fruitV or vegetable" jar 1, though, of course, it will be understood that the invention-may be applied to containers of other classes as well.y Y

The jar is provided with a reduced neck provided with an unobstructed mouth having the outwardly-extending, annular flange 2 surrounding the same to provide ample space for an annular channel 3 formed in the' upper face of the said flange and neck.

The said channel 3 extends entirely around the jar and is easily produced in the usual manner in the formation of the jar. The Outer wall 4 of the channel 3 is upwardly and' outwardly inclined at an obtuse angle to the bottom of saidchannel, and the inner wall 5 of said channel is likewise inclined at an obtuse angle with relation to the bottom ofthe'sam`e, as clearly shown in vFigure 5' of the drawing, but is shorter than the outerwall.

The bottom wall of the annular channel 3, as well as the inner wall 5 thereof are preferably ground in a well-known manner, for the purpose of producing an air-tight joint in coaction with certain parts carried by the closure for the jar. i

The upper end of the inner annular wall 5 of the channel 3 communicates with an inwardly-extending, supplemental channel 6, formed by the provision of aninwardlydirected step terminating short of the adjacent inner wall ot the neck of the'jar, and resulting in the provision of an upstanding annular rib or flange 'l' whose inner wall is 'co-'extensive with said inner wall of the neck of the jar and extends entirely around the same.

The upper edge of the rib or flange 7 is on a; horizontal plane with the'upper edge ofthev rib 8, formed between the outerinclined wall 4: of Vthe main channel andthe outer face of the flange 2, and the saidrib 8 preferably `has its upper edge rounded as shown, so as to prevent chipping of the glass when the jar is being opened in a manner to be described.

The closure or cap 9 for the jar comprises a 4solid glass disc of a diameter somewhat less than the externa-l diameter of the mouth of the jar, and said capor closure is provided at a point'.V adjacent to its periphery with an annular, depending flange 1 0on its under side and formedintegrally therewith, the said flange having its outer and inner sides ll and l2 respectively inclined in substantial parallelsinwith the walls et and 5' la solid glass disk having on its under side i an annular tapered flange of a depth greater than the combined depth of said channels and of a. diameter to seat itself in the firstnamed channel of the jar, with the inner wall of the flange engaging theinner wall of the first-mentioned channel, andthe bottomV 2. The combination with a jar having an' annular channel formed in the upper surface of its neck and surrounding the open mouth thereof, said channel having inclined outer and inner walls, and a supplemental annular channel formed above the other channel and between it andthe mouth of the jar, the bottom and inner wall of the first-mentioned channel being ground, of a closure for the jar comprising a solid glass disk having on its under side an annular tapered flange, the bottom and inner wall of which are ground, said flange being of a depth greater than-the combined depth of said channelsand of a diameter to seat itself in the firstmentioned channel of the jar, with the inner wall of the flange engaging the inner wall of the first-mentioned channel, and the bottom thereof seated on the bottom of said channel and with the under surface of the disk spaced from the upper inner edge of the neck whereby moisture from the inside of the jar may pass into and become condensed in tlhe supplemental channel to form a liquid sea I 3. The combination with a jar having an annular channelfformed in the upper surface of its neck in surrounding relation to the open mouth thereof, said channel having inclined inner and outer walls and a supplemental annular channel formed above the other channel and between it and the mouth of the jar, of a closure for the jar comprising a solid glass disc having on its underside an annular depending tapered flange of a diameter to seat itself in the channel of the jar, with the inner wall of the flange engaging the inner wall of said channel and the bottom thereof resting on the bottom of said channel, the width of said channel being greater Vthan the width of said flange, so as to provide a space between the outer wall of the flange and the outer wall of the channel in which to place sealing wax, the height of the flange being greater than the depth of the channel, so that a space is left between the upper wall of the neck and the bottom wall of the closure for the insertion of an instrument to remove the closure, and whereby a space is also left between the bottom wall of the closure and the inner edge of the neck to permit a seal of condensed moisture to collect in said supplemental channel.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature.

WILLIAM MUnLLni-z.. 

